Everything is converted to Bootstrap 3, but only the front page has been seriously redesigned.
All other pages have been made sure to be readable and not look misaligned, but have not been changed other than the colors and fonts. Most images are now also responsive.
The call to action is now a mailto:email@example.com. That could be more / different.
I stil have a lot of ideas to further enhance / update it, but let me know what you think.